50.37% is the change from 546 to 821
Calculation steps:
[( 821 - 546 ) ÷ 546] x 100 = 50.37%
Formula
Percentage change = [(821 - 546) / 546] x 100
Subtract the new number by the original number
821 - 546 = 275
275 ÷ 546 = 0.5036630036630036
0.5036630036630036 x 100 = 50.37%